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xen-users
Re: [Xen-users] VM checkpoint/restart and migration
Andreea Costea schrieb:
Hi,
i am quite new to Xen, I want to do some experiments and I would like
to know the followings regarding some of the Xen Hypervisor features:
*Context A: *2 hosts in the same LAN, 2 VMs on top of each host and a
NFS storage with the disk images between the hosts. Host 1 contains
VM1 and VM2 and Host 2 contains VM3 and VM4. All VMs have private IPs.
1. Save/restore: I run an application that was communicating with all
4 VMs in the same time. I suspended the application and I saved the
state of VM1 to the shared storage and than restart VM1 from that file
on top of Host2. Than I resumed the application and it continued it's
execution successfully. So this means that the connections were
preserved.
Interesting. An application should have some kind of timeout for open
sessions; in any case this depends very much on how the app handles
this. This test delivers by no means a valuable general result (sorry
for hitting into it so directly).
You have to test this separately for every application you plan to deploy.
Dirk
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